We conjured a turtle on a Cornish beach last Sunday, and slates gathered on the beach were scales for its back. Five hours later, in the gloaming, I watched the incoming tide, the waves creeping, maybe one in three or one in four, a little closer, until they trickled into the ditch we’d dug around the turtle. The shell held out a little longer, maybe ten minutes, until a small wave sloshed gently over the top, and then the undermining was really underway. By the time I took my leave, reluctantly, ten minutes later, there was barely a hump to be seen, as the tide pushed further in.

Impermanence… I’ve also been walking the coast path, from Trevose Head to Morgan Porth, and back, the same terrain, yes, but different perspectives, as if two separate journeys. The coves bite deep, and the caves and sink-holes provide sounding-boards for the waves. The rocks break and twist, as the strata and lines of weakness, and all the vagaries of weather and climate over many millions of years, dictate. And yet it all seems so permanent. Even the flock of oyster-catchers, which piped on a rock platform far below: they were there both outward and inward, though inward the black-backed gulls had flown.

Looking down on Bedruthan Sands from the cliff top, the sand was fresh-swept – the tide bites the cliff, no soft or littered sand, and four girls were playing boule, and their cries just carried to me. The waves which had been a high surf were lapping low, or seemed to from my elevation, and all seemed … well, yes, permanent.  I didn’t want to walk on, and lose that sense of forever.

I found a grassy slope, and sat and looked out to see, blue under blue, aquamarine closer in, where it shallowed, and the rippling smoothness extended in a great curve around me. Another cliff, another cove – snorkellers were taking advantage of low tide and swimming out to a sandy beach.

Where the cliffs come down to Treyarnon beach there’s a steep gully which you can swim through at lowest tide. This, my imagination tells me, is what they do, what I could do, as the observer, every day, and yet – such moments, such times, are rare. The tide will rise, the mists sweep in, and the storms, and the winter …

Joy and a gentle melancholy combine, and a sense of peace, and fragility … that sense of living in the moment, and yet living forever.